In fluid flows, the large-scale structures play a major role in its dynamics. Hence, an identification of such structures is critical for understanding fluid flows. Proper Orthogonal Decomposition (POD) [1]}, [2]}, [3]} is one of the popular methods for this task.
In this paper we employ a POD scheme called “snapshot method" [4]}, [5]}, in which a number of uncorrelated and discrete time snapshots of the flow field are used.
